All categories

3 years ago

It’s MATH who knows how to do this i’m down bad

Mathematics

1 answer:

AysviL [449]3 years ago

4 0

Answer/Step-by-step explanation:

1. 7x + 2 = 5x + 22 (alternate interior angles are congruent)

Collect like terms

7x - 5x = -2 + 22

2x = 20

2x/2 = 20/2

x = 10

2. 13x - 6 = 10x + 24 (alternate interior angles are congruent)

Collect like terms

13x - 10x = 6 + 24

3x = 30

3x/3 = 30/3

x = 10

3. (12x + 26)° + 46° = 180° (same side interior angles are supplementary)

12x + 26 + 46 = 180

12x + 72 = 180

12x + 72 - 72 = 180 - 72

12x = 108

12x/12 = 108/12

x = 9

4. (5x + 5)° + 135° = 180° (same side interior angles are supplementary)

5x + 5 + 135 = 180

5x + 140 = 180

5x + 140 - 140 = 180 - 140

5x = 40

5x/5 = 40/5

x = 8

You might be interested in

Suppose that 5.9 percent of the statues unearthed in Qin Shihuangdi's tomb are statues of horses. Express 5.9 percent as a decim

Svetllana [295]

I think its 5.9+5.9 11.9

5 0

3 years ago

*REVERSE PROPORTION*

muminat

9514 1404 393

Answer:

33.3%

Step-by-step explanation:

The selling price of £42 is (1 +40%) times the total purchase price.

1.40 × purchase price = £42

purchase price = £42/1.40 = £30

The total profit is 40% of this, so is ...

£30 × 40% = £12

The purchase price of the skirt is ...

total cost - glove cost = skirt cost = £30 -3 = £27

The profit on the skirt is ...

total profit - glove profit = skirt profit = £12 -100% × £3 = £9

Then the percentage profit on the skirt is ...

skirt profit % = skirt profit / skirt cost × 100% = £9/£27 × 100% = 33.3%

The percentage profit on the cost of the skirt was 33.3%.

5 0

3 years ago

Need help asap!! please

notka56 [123]

Answer:

A. x ≤ $-\frac{19}{13}$

Step-by-step explanation:

-9x + 2 > 18 or 13x + 15 ≤ -4

-9x > 16 or 13x ≤ -19

x > $-\frac{16}{9}$ or x ≤ $-\frac{19}{13}$

From the choices given, only x ≤ $-\frac{19}{13}$ proves to be correct answer.

3 0

4 years ago

CAN SOMEONE PLEASE HELP ME WITH THESE PEOPLE

vazorg [7]

Inverse of $f(x)=x+2$ is $f^{-1}(x)=x-2$ because

$f(x)=x+2\Rightarrow x=f^{-1}(x)+2\Rightarrow\boxed{f^{-1}(x)=x-2}$

Now $f^{-1}(-5)=-5-2=\boxed{-7}$ .

Hope this helps.

4 0

3 years ago

What is the area, in square meters, of the shape below? Express your answer as a fraction in simplest form.

kramer

Answer:

20/3

Step-by-step explanation:

5/3 x 4/3

5x4=20

keep the denominator

20/3

5 0

3 years ago